2665525 has 6 divisors (see below), whose sum is σ = 3305282. Its totient is φ = 2132400.

The previous prime is 2665513. The next prime is 2665547. The reversal of 2665525 is 5255662.

It can be written as a sum of positive squares in 3 ways, for example, as 361201 + 2304324 = 601^2 + 1518^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2665525 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53286 + ... + 53335.

2^2665525 is an apocalyptic number.

2665525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2665525 is a deficient number, since it is larger than the sum of its proper divisors (639757).

2665525 is a wasteful number, since it uses less digits than its factorization.

2665525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106631 (or 106626 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 2665525 is about 1632.6435618346. The cubic root of 2665525 is about 138.6524623589.

The spelling of 2665525 in words is "two million, six hundred sixty-five thousand, five hundred twenty-five".